baber/WOPTO huggingface dataset:
Patent GB-311670-A (GB)
Title: Improvements in or relating to apparatus for use in the manufacture of artificial silk or other operations in which liquids are supplied under pressure
IPC: D01D1/09
Filed: 1928-02-09
Abstract: 311,670. British Celanese, Ltd., and Kinsella, E. Feb. 9, 1928. Regulating delivery by by-passes. -Pumping apparatus for delivering regulated quantities of spinning solution or other liquid to the spinning nozzles of an artificial silk &c. plant, comprises a static measuring-device a rotary or other pump delivering liquid under pressure to the static measuring-device, and a pressure - balance valve actuated differentially by the inlet and delivery pressures of the static measuring-device and arranged to control a by-pass connecting the inlet and delivery sides of the pump so as to maintain a constant difference of pressure between the inlet and delivery pressures of the static measuring-device. The static measuring-device may be adapted to maintain constant the supply of liquid therethrough under variations of temperature. The pressure-balance valve may be so constructed, or means may be provided in association therewith, that should excess pressure develop on either side of the static measuring-device, the inlet and delivery sides of the pump are put freely into communication. As shown in Figs. 2, 3 and 4 the static measuring-device 4 consists of an orifice 19 in a plate 18, and the pressure-balance valve comprises a piston 6 working in a chamber 9 against a spring 23 and a hollow piston valve 7 mounted on the piston 6 and provided with a notch or notches 14 serving to control the passage of liquid to a groove 15 in communication with the inlet -side of the pump 2 ; the notch 14 and groove 15 form part of a by-pass connecting the inlet and delivery sides of the pump, and other parts being the chamber 8, apertures 13 and the hollow stem of the piston valve 7. By suitable proportioning of the parts and by the provision of recesses 28, Fig. 3, in the walls of the piston chamber 9, excess pressure developed on the delivery side causes the piston valve to rise uncovering the groove 15 so that the inlet and delivery sides of the pump are put into free communication, while further movement of the piston permits the execss pressure on its underside to be relieved through the recesses 28, which now are uncovered; a spring 32 serves to return the valve to its normal position. Under excess pressure on the inlet side, the piston 6 is forced downwards and the upper edge of the valve 7 uncovers the groove 15, the pump then working idly. Alternative means for dealing with excess pressures are shown in Fig. 4, and comprise an auxiliary piston 33 poised between springs 42, 43 while being subjected to the inlet and delivery pressures of the static measuring-device. Piston valves 35, 36 on the auxiliary piston control passages connected through a pipe 40 with the inlet side of the pump. In the place of the piston valve 7, a needle valve 10, Fig. 7, may be employed; and the piston 6 may be substituted by a spring-loaded diaphragm 5, Fig. 7.
Patent GB-1071866-A (GB)
Title: Hydraulic system for controlling winches
IPC: B66D1/26
Filed: 1966-01-31
Abstract: 1,071,866. Winch hydraulic control apparatus. NEW YORK AIR BRAKE CO. Jan. 31, 1966 [March 4, 1965], No. 4106/66. Heading B8B. [Also in Division F2] A hoisting system comprises a plurality of winches 13, each driven by a reversible hydraulic motor 14 controlled by a valve 18, the latter having a sliding spool movable by a reversible electric motor 55 in association with a feedback means 53 associated with the winch cable 15. The electric circuit controlling each motor 55 comprises a speed control 68 and ganged on-off reversing switches 66, 67. All the motor control circuits for the plurality of winches are connected in parallel and are controlled by a master circuit 57 including a speed control 59 and on-off reversing switches 61-62. The valve 18 comprises two connections 32, 33 to the hydraulic motor, two connections to an hydraulic reservoir 31 and a connection 37 to a discharge pressure compensated variable delivery pump 34 fed from the reservoir 31. The sliding spool in the valve 18 has a threaded bore at one end into which threads a rotary actuator 52 driven by the motor 55 and the other end of the spool engages a rotary actuator 53 driven by rollers 54 engaging the moving cable 15. The actuator 53 is rotationally rigid with the spool but axially movable relative thereto. In operation, any creeping down of a load 12 when the motor 55 is not energized causes the actuator 53 to turn the valve spool relative to the stationary actuator 52 and the spool is axially moved, whereby fluid is supplied to the hydraulic motor 14 causing a winding in of the cable. The latter movement reverses the spool movement and the fluid supply is cut off. For power raising or lowering of the cable, the relevant direction of rotation and speed of the motor 55 is selected causing the valve spool to move accordingly, accelerating the cable motion until the actuator 53 rotates the spool at the same rate as does the actuator 52, whereby the spool axial motion is stopped and a constant velocity of cable motion is obtained. When the motor 55 is de-energized, the movement of the cable-controlled actuator 53 relative to the actuator 52 causes the spool to move and shut off the fluid supply to the hydraulic motor 14.
Patent GB-397772-A (GB)
Title: Improvements in gill-box drawing mechanisms
IPC: D01H5/04
Filed: 1933-02-10
Abstract: 397,772. Gill-boxes. NOUVELLE SOC. DE CONSTRUCTION CI-DEVANT N. SCHLUMBERGER ET CIE, Guebwiller, Haut-Rhin, France. Feb. 10, 1933, No. 4184. Convention date, Feb. 10, 1932. [Class 120 (i).] In a gill drawing frame or intersecting gill-box of the kind described in Specification 377,392, having faller bars 1, Fig. 1, propelled by toothed wheels 4 engaging the shaped ends of the bars and under the control of brake pinions 3, the brake pinions each comprise a gear wheel 3 keyed on a vertical shaft 8, Fig. 2, the frustoconical end 8<1> of which is supported in a footstep bearing 9, the upper cylindrical end 8<11> of the shaft 8 being slidable in a cage 10 and being formed with a conical cup 11 lined with a leather washer 12, a braking cone 13, pressed downwardly by a spring 18 and prevented from sliding in the cage 10 by the engagement of a screw 17 in a slot 16, coacting therewith. The pressure of the spring 18 is adjustable by a nut 22. The beaks 7, 6 for raising and lowering the bars 1 are reciprocated vertically by rods 33, 34, Fig. 3, which slide in sleeves 35 and are driven from a toothed wheel 23 on the shaft 24 driving the return screw 25, through a pinion 26 integral with an eccentric 27, a connecting rod 28 and a crank 29 keyed on a shaft 30 carrying rocking arms 31 provided with links 32 pivoted to the rods 33, 34. The beaks 7 are formed by oscillating members 39 pivoted at 38 on rods 36 secured to the members 33, the members 39 being pressed outwardly into the operative position by springs 40. The beaks 6 comprise notched rods 42 pivotally mounted at 41 on the ends of the sliding rods 34 and subject to the action of a spring 43.
Patent GB-212238-A (GB)
Title: Improved manufacture of anti-diabetic products
IPC: C07K14/625
Filed: 1924-02-19
Abstract: 212,238. 'University of Toronto, Governors of the, (Assignees of Walden, G. B.). March 2, 1923, [Convention date]. Hypodermic injections.-A solution of the anti-diabetic hormone obtained in known manner from the pancreas is adjusted, by the addition of an alkali such as sodium hydroxide or an acid such as hydrochloric so as to have a hydrogen ion contentration within a Ph range of 4 to 7, preferably 4-5 to 5-5, so that a relatively pure precipitate of the active substance is obtained at the isoelectric point. The formation of the precipitate may be accelerated by diluting the solution whilst maintaining the hydrogen ion concentration, and by cooling the solution. The precipitate obtained is dissolved in water containing an acid or a base and adjusted to a Ph value less than 4 or more than 7. The original solution to be treated is preferably the known product obtained by extracting the fresh glands with a solvent such as alcohol which prevents enzyme action, increasing the concentration of the alcohol or other solvent so as to precipitate impurities, further increasing the concentration to precipitate the, active substance, and finally dissolving the active substance so obtained in water. Less pure intermediate products may, however, be employed. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of the pancreas and related glands of fishes as a source of the hormone,. This subject-matter does not appear in the Specification as accepted.
Patent GB-709972-A (GB)
Title: Method and machine for drying textiles
IPC: D06C3/00
Filed: 1952-02-18
Abstract: 709,972. Drying textile webs. KRANTZ, H., and KRANTZ, W., [trading as KRANTZ SOHNE, H.]. Feb. 18, 1952 [Feb. 19, 1951], No. 4292/52. Class 34(1) textile webs are dried in successive stages by heated air and superheated steam alternately. A single layer tenter drier has six chambers, a, b, c, d, e, f, through which the fabric web 1 is continuously conveyed and air entering at inlet 2 passes to fan 3 and is forced over heating elements 4 and then transversly of the web in chambers a, b, c, d. In chambers e, f the web is treated with superheated steam from a pipe 5, which steam forces out the air in the chamber at the beginning - of the operation and is then recirculated and reheated. In a modification (Fig. 4) the drying medium is blown against both sides of the fabric by means of nozzles 10. A cooling zone may be provided at the delivery end of the tenter.
Patent GB-891847-A (GB)
Title: A new or improved latch
IPC: E05C7/02
Filed: 1960-02-08
Abstract: 891,847. Latch fastenings. GRETSCHUNITAS G.m.b.H. Feb. 8, 1960 [Feb. 28, 1959], No. 4333/60. Class 44. A latch for coupling the two sashes 18, 19 of a double window includes a hook 3a which engages a keeper 14 the hook being fixedly connected with a manually operable lever arm 4 capable of swinging towards the keeper for unfastening the latch, the arrangement being such that when both sashes are moved to the closed position the lever arm abuts a fixed part of the window frame which engages the hook and keeper. The hook 3a is provided by a cut-out 5 in a member 3 which is mounted in a casing 1 on a pin 2. The lever arm 4 is connected to the pin 2 outside the casing 1. The keeper is U-shaped and the hook 3 engages an opening 15 in its base. The keeper is mounted on the sash 19 and the casing 1 on the sash 18 and the window frame has a rebate 20 such that if the sashes are closed while the latch is unfastened the abutment of the lever arm 4 against the edge of the rebate 20 moves the latch to the fastened condition. The sashes must be moved away from the frame before the latch can be unfastened. To retain the latch arm in the fastened position a hole 10 is provided in the arm which cooperates with a pressed-out boss 8 in one side of the casing 1. A locating stud 13 is provided on the casing 1 which co-operates with an opening 16 in the base of the keeper.
Patent GB-394916-A (GB)
Title: Improvements in and relating to closures for jars, bottles and like containers
IPC: B65D41/04
Filed: 1933-02-13
Abstract: 394,916. Making screw-stoppers. SCOVILL MANUFACTURING CO., 99, Mill Street, Waterbury, Connecticut, U.S.A. Feb. 13, 1933, No. 4345. Convention date, Aug. 12, 1932. [Class 83 (ii).] A screw-stopper for bottles &c. comprises a top portion and a skirt, the upper portion of the skirt wall being thicker than the lower portion, and a plurality of internal thread-engaging lugs formed from tongues shaved from the inner surface of the thicker portion of the cap skirt. As shown, the lugs are rolled up to form beads 18 positioned at progressively increasing distances from the lower edge of the cap in accordance with the pitch line of the thread on the bottle &c. neck.
Patent GB-1449932-A (GB)
Title: Scaffolding for use in forming a concrete floor slab
IPC: E04G11/50
Filed: 1974-01-30
Abstract: 1449932 Supporting formwork for concrete floors; trusses IWATANI & CO Ltd and NISSHIN TSUSHIMA CO Ltd 30 Jan 1974 04379/74 Headings E1K and E1S Formwork 67 for a concrete floor 68 is supported by a truss 10 comprising a horizontal main chord 11, a pair of lower chords 13 detachably secured at respective ends to each other and to ends of the main chord to form a triangle, and at least one brace 12 (as shown, two) detachably secured at respective ends to the main chord and to the joint between the lower chords: the main chord 11 comprises two overlapping sections 17, 18 adjustable to vary the overall length, the overlapping ends having series of holes 21 for selective interconnection by a fastening device 14a, 14b; and the lower chords 13 each comprise two overlapping sections 32, 33 connected by a turn-buckle device 39 for contracting the lower chord and thereby producing a chamber in the main chord 11, the turnbuckle 39 comprising a rod having screwthreaded ends engaged in transverse bores of bolts 40 selectively engaged in series of holes 34, 35 in the overlapping ends. The ends of the truss are fitted with brackets 15 co-operable with support members 16 which, as shown, are mounted on the sides of forms 63 for the floor ribs, supported on props 69. The support member 16 includes a pivoted bracketcarrying plate which can be moved to release the truss after casting. The various detachable joints of the truss are secured by fastening devices 14a, b, c, d, each comprising a slotted wedge and a grooved pin 22.
Patent GB-726443-A (GB)
Title: Improvement in fluid heaters
IPC: C10G9/20
Filed: 1953-02-17
Abstract: <PICT:0726443/III/1> In a fluid heater, e.g. for use in the conversion of hydrocarbon oil, a hollow bank of vertical tubes 16 in which the fluid is heated is arranged around the outer wall 11 of an annular combustion chamber 13, and combustion air flowing through a vertical passage 26 in the inner wall 49 of the combustion chamber 13 is heated by radiant heat from combustion gases in that chamber. Combustion air flows upwardly through a central conduit 40, between flue tubes 32 arranged in an annular nest with transverse baffles 34, downwardly through a passage 48, to a box 53 supplying burners 15. The fluid to be heated flows upwardly through the tubes 16.  The combustion gases leaving the chamber 13 flow through insulated sleeves 21 surrounding the upper parts of the tubes 16, through passages 29, 30 and through the air-heating tubes 32.  U.S.A. Specification 2,592,608 is referred to.
Patent GB-123776-A (GB)
Title: An Improved Rotary Engine.
Inventor: MADERO EDUARDO JOSE MARIA
IPC: F01B17/04
Filed: 1917-03-29
Abstract: 123,776. Madero, E. J. M. March 29, 1017. Movable-abutment type; packing drums etc.; valves, distributing &c.-Rotary abutments 19, 20 housed in chambers 2 at the junction of the two semicircular sections of a casing 1 co-operate with a piston vane 12 on a disk 4, which contains the inlet and outlet passages 14, 15 and is packed laterally by adjustable plates 6 having a series of concentric grooves 5 registering with similar grooves in the faces of disks 4 so as to utilize condensed steam for packing. The abutments 19, 20 have similar grooves 19<1> co-operating with eccentric grooves 25<1> formed in adjustable plates 24, 25, and are driven from the shaft 8 by helical gearing. The passages 14, 15 lead respectively to the hollow shaft 16 and a pipe 17, either of which may be used as the admission pipe according to the direction of running. A fixed sleeve with adjustable openings may be provided to control the cut-off at the orifice of the pipe 17.
Patent GB-1206946-A (GB)
Title: Improvements in or relating to the continuous production of a fibre-reinforced plastics material
Inventor: LOCKHART WILLIAM NELSON
IPC: B29C48/13
Filed: 1966-10-11
Abstract: 1,206,946. Extrusion moulding plastics sheets or sections. ENGLISH ELECTRIC CO. Ltd. 6 Oct., 1967 [11 Oct., 1966; 31 Jan., 1967], Nos. 45401/66 and 4588/67. Heading B5A. A continuous extrusion process for producing fibre-reinforced plastics sheets or sections comprises drawing thermosetting resin impregnated mats, cloths or filaments of reinforcing material, e.g. glass fibre or sisal, through a shaping die and injecting thermoplastics or thermosetting liquid plastics into contact with the reinforcing material via recesses 30 which are situated in a cooled part 27 of die 34 to form coating layers 33. As shown, the impregnating liquid thermosetting resin is injected into contact with reinforcing material 10 via recesses 18 which are situated in a cooled upstream portion 15 of the die. Further portions 26, 28 of the die are heated and downstream portion 29 is cooled. The coating plastics may be of the same composition as the impregnant, in which case only one of reservoirs 19, 31 need be used. In a modification, Fig. 1 (not shown), a coating of liquid thermosetting resin is applied to the reinforcing material by passage thereof through a tank (22) upstream of die (23). Laminated material may be produced by introducing into the die a core material sandwiched between two layers of glass-fibre mat or cloth. The coating plastics may be, as a thermosetting resin, a polyester, or as a thermoplastic resin PVC. The layers 33 need not be applied to all faces of the impregnated reinforcement.
Patent GB-920201-A (GB)
Title: Improvements in polyurethane resinous materials
Inventor: PHILLIPS LESLIE NATHAN
IPC: C08G18/24
Filed: 1959-02-11
Abstract: The invention comprises polyurethane adducts, being the reaction products of polyesters with diisocyanates and having terminal isocyanate groups, including as a cure-promoting catalyst a proportion of a hydrolysable metallic chloride not exceeding 5% by weight of the adduct.  The hydrolysable chloride is one which on warming with water gives a reaction liberating CHl and producing oxychlorides or hydroxides.  In Examples 1 to 3 an adduct with an isocyanate equivalent of 950 (prepared by reacting a polyethylene glycol/neopentyl glycol adipate successively with naphthalene diisocyanate and toluylene diisocyanate in toluene is cured by adding tin tetrachloride or stannic chloride and heating. Titanium tetrachloride is used in a further example.  The products are used for impregnating and bonding layers of nylon.  Reference has been directed by the Comptroller to Specification 872,569.ALSO:The invention comprises polyurethane adducts, being the reaction products of polyesters with diisocyanates and having terminal isocyanate groups, including as a cure-promoting catalyst a proportion of a hydrolisable metallic chloride not exceeding 5% by weight of the adduct (see Group IV(a)).  In Example V the inside of a mould is coated with a solution of an adduct (prepared by reacting a polyurethane sebacate ester in turn with diphenyl methane diisocyanate and toluylene diisocyanate) containing stannic chloride catalyst.  The coating is cured by heating and a foaming polyurethane composition is poured in and foams in place to give a foamed object with a coating of the polyurethane applied first to the mould. Reference has been directed by the Comptroller to Specification 872,569.
Patent GB-801562-A (GB)
Title: Improvements in the production of benzene dicarboxylic acids
IPC: C07C51/265
Filed: 1955-02-17
Abstract: Benzene dicarboxylic acids are made by treating the corresponding dialkylbenzenes in a known manner with oxygen or oxygen-containing gases at raised temperature in the presence of an oxidation catalyst soluble in the dialkylbenzene until the absorption of oxygen has ended, then treating the resulting crude oxidation product in an aqueous caustic alkali medium with oxygen or oxygen-containing gases while maintaining the alkaline reaction at raised temperature under pressure in the presence of an emulsifier, if desired in the presence of a water-soluble oxidation catalyst, until the absorption of oxygen is completed and liberating the free carboxylic acid from the resulting alkali-metal salt solution by acidification. Dialkylbenzenes specified are xylenes, diethylbenzenes, diisopropylbenzenes and cymene.  The first oxidation step may be conducted at 145-150 DEG  C. initially under atmospheric pressure in the presence of about 0.05-1.0 per cent by weight of a cobalt naphthenate or manganese stearate catalyst, the temperature being raised towards the end of the reaction.  When the starting material is a xylene, the crude oxidation product is mainly a toluic acid, but with dialkylbenzenes which have two or more carbon atoms in a side chain diacetyl benzenes or acetylbenzoic acids are obtained.  The oxidation product is comminuted and subjected to the second oxidation step in the presence of sufficient aqueous caustic alkali to ensure a permanent alkaline reaction, an alkyl amyl sulphonate emulsifier such as an alkyl benzene or alkyl naphthalene sulphonate in amounts of about 1 per cent by weight of the original dialkylbenzene, and 0.5 to 5 per cent by weight of the original dialkylbenzene of a water-soluble catalyst such as an alkali-metal salt of an oxyacid of the 5th and 6th groups of the periodic system, such as vanadic, molybdic, tungstic or chromic acid.  The aqueous solution of alkali-metal salt of the benzene dicarboxylic acid obtained is purified by treatment with an oxidizing agent such as sodium hypochlorite in presence of an emulsifying agent.  In examples: (1) p-diethylbenzene is oxidized with air in the presence of cobalt naphthenate to give initially diacetyl benzene and then acetylbenzoic acid which is comminuted, aqueous caustic soda, sodium bichromate and di-isobutyl-naphthalene sulphonate added thereto and treated with air under pressure to give terephthalic acid, purified as the sodium salt by oxidation with sodium hypochlorite and di-isobutyl-naphthalene sulphonate; (2) p-xylene is similarly oxidized to give terephthalic acid.  Specifications 679,400 and 786,747 are referred to.
Patent GB-784237-A (GB)
Title: Shut-off valve
Inventor: HAMILTON-PETERS RODNEY
IPC: F16K15/00
Filed: 1955-02-17
Abstract: 784,237. Valves. DISTILLERS CO., Ltd. Jan. 23, 1956 [Feb. 17, 1955], No. 4747/55. Class 135. A shut-off valve of the diaphragm type suitable for fluids at low temperatures and high pressures, e.g. liquid carbon dioxide, comprises a foraminous portion at the inlet to the valve body adapted to be sealed by the diaphragm which is actuated by a substantially incompressible medium capable of transmitting pressure on the opposite side of the diaphragm to the inlet and outlet orifice, and means to prevent substantial extrusion of the diaphragm into the outlet orifice when pressure is developed in the medium. In one embodiment, the inlet 2, Fig. 1, has a foraminous portion 1 of sintered metal, e.g. phosphor bronze and stainless steel, and the outlet 4 is provided with a similar foraminous part 5. The diaphragm 7 is of polythene and is pressed over the inlet and outlet openings by compression of rubber sheets 6 housed in an enclosure 9 and placed under pressure by a screwed plug 8. In a modification, the sintered compact 1, Fig. 2, is removable, being held in place by a perforated plate 10 engaged by a spacing ring 11 in contact with a flange of an inlet tube 12. Extrusion of the diaphragm into the outlet 4 is prevented by a spring-loaded plate 5. The medium by which pressure is applied to the diaphragm is a silicone fluid 13 placed under pressure by a remote plunger 8. It is stated that stainless steel may be used for the diaphragm.
Patent GB-438501-A (GB)
Title: Improvements in electrical condensers
IPC: H01G9/10
Filed: 1934-02-13
Abstract: 438,501. Lever-lids. ELEKTRIZITATSAKT.-GES. HYDRAWERK, 32, Drontheimerstrasse, Berlin. Feb. 13, 1934, No. 4811. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 17, 1934]. [Class 125 (iii)] [See also Groups XXXV and XXXVI] A cylindrical casing 1 for an electric condenser 5 has a lever lid 2. Lugs 6 may be provided for bending over to secure the lid in position.